Zayo to Host Earnings Conference Call Friday, November 8th, 2013

BOULDER, Colo. October 30th, 2013 – Zayo Group, LLC (“Zayo” or the “Company”) invites you to listen to its earnings call for the fiscal first quarter ended September 30th, 2013 on Friday, November 8th, 2013.

Dial-in information for the audio portion of the Webcast: U.S. & Canada Toll-Free: 800-736-4594

The Company will discuss our recent quarter earnings that ended on September 30, 2013 and a number of financial and operational metrics that are included in the earnings supplement presentation. This presentation will be available via the webcast. Both the earnings supplement and playback recording will be available after the call through Zayo’s website at: http://www.zayo.com/financial-earnings-release.

If you have any questions, please contact Zayo Investor Relations at 800.741.5804 or IR@zayo.com.

About Zayo Group

Based in Boulder, Colo., privately owned Zayo Group (www.zayo.com) is an international provider of fiber-based Bandwidth Infrastructure services and carrier-neutral colocation and interconnection services. Zayo serves wireline and wireless carriers, data centers, Internet content and services companies, high bandwidth enterprises, and federal, state and local government agencies. Zayo provides these services over metro, national, international and fiber-to-the-tower networks. With its acquisitions of Fiberlink, Access Communications and AboveNet, Zayo’s network includes 75,839 route miles. Zayo serves 45 states, Washington, D.C., the District of Clumbia and is present in 7 countries. Its network serves approximately 12,222 on-net buildings, including 579 data centers, 566 carrier PoPs, and 3,303 cell towers. Zayo’s colocation assets include 157,936 billable square feet of interconnect-focused colocation space.